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News tagged with nucleotide

RNA reactor could have served as a precursor of life

(PhysOrg.com) -- Nobody knows quite how life originated on Earth, but most scientists agree that living cells did not abruptly appear from nonliving cells in a single step. Instead, there were probably a series ...

Physics / General Physics

created Jul 11, 2011 | popularity 4.7 / 5 (27) | comments 103 | with audio podcast feature

Scientists discover new genetic sub-code

In a multidisciplinary approach, Professor Yves Barral, from the Biology Department at ETH Zurich and the computer scientists Dr. Gina Cannarozzi and Professor Gaston Gonnet, from the Computer Science Department of ETH Zurich ...

Biology / Cell & Microbiology

created Apr 16, 2010 | popularity 4.9 / 5 (17) | comments 0 | with audio podcast

Powerful genome barcoding system reveals large-scale variation in human DNA

(PhysOrg.com) -- Genetic abnormalities are most often discussed in terms of differences so miniscule they are actually called "snips" — changes in a single unit along the 3 billion that make up the entire string of human ...

Medicine & Health / Genetics

created May 31, 2010 | popularity 4.9 / 5 (16) | comments 2 | with audio podcast

Friendship may have a genetic component

(PhysOrg.com) -- New research suggests groups of friends may have common genetic patterns. Social scientist Professor James Fowler of the University of California, San Diego, came to this conclusion after ...

Medicine & Health / Genetics

created Jan 18, 2011 | popularity 4.6 / 5 (14) | comments 6 | with audio podcast report

Five new human genomes decoded, marking a transition to more personalized medicine

It seems longer, but it was only seven years ago that the Human Genome Project deciphered the sequence of the 3 billion nucleotides that make up a single human blueprint or genome. That project cost more than $3 billion and ...

Medicine & Health / Genetics

created Mar 12, 2010 | popularity 5 / 5 (12) | comments 0

Physics of gene transcription unveiled

(PhysOrg.com) -- A research team has made precise measurements of where and how RNA polymerase encounters obstacles while it reads nucleosomal DNA.

Biology / Cell & Microbiology

created May 14, 2010 | popularity 5 / 5 (12) | comments 2 | with audio podcast

Genetic heritability may be hidden deeper than previously thought

(PhysOrg.com) -- Geneticists trying to find a link between the genes and traits such as height have until recently found genetic variants that account for only around 5% of the heritability of these traits. ...

Medicine & Health / Genetics

created Jun 21, 2010 | popularity 4.8 / 5 (12) | comments 3 | with audio podcast report

The language of RNA decoded: Study reveals new function for pseudogenes and noncoding RNAs

The central dogma of molecular biology, as proposed in 1970 by Francis Crick and James Watson, holds that genetic information is transferred from DNA to functional proteins by way of messenger RNA (mRNA). This suggests that ...

Medicine & Health / Medical research

created Jun 23, 2010 | popularity 5 / 5 (11) | comments 0 | with audio podcast

Tiny reader makes fast, cheap DNA sequencing feasible

Researchers have devised a nanoscale sensor to electronically read the sequence of a single DNA molecule, a technique that is fast and inexpensive and could make DNA sequencing widely available.

Nanotechnology / Bio & Medicine

created Mar 26, 2012 | popularity 5 / 5 (11) | comments 0 | with audio podcast

Researchers identify genetic signatures of human exceptional longevity

While environment and family history are factors in healthy aging, genetic variants play a critical and complex role in conferring exceptional longevity, according to a new study by a team of researchers from the Boston University ...

Medicine & Health / Genetics

created Jul 01, 2010 | popularity 4.9 / 5 (9) | comments 5 | with audio podcast

Backtracking on DNA

(PhysOrg.com) -- Accuracy is essential for life, so in converting the information stored in DNA into a form in which it can be used, a high level of precision is required. Dr Tanniemola Liverpool from the ...

Physics / General Physics

created Jun 23, 2009 | popularity 4.6 / 5 (9) | comments 0

Critics cast doubt on recent longevity gene study findings

(PhysOrg.com) -- A recent study of centenarians (reported in PhysOrg on July 1st) that linked a number of gene variants to longevity has now been questioned by other scientists, who suggest a DNA chip known as 610-Quad, used in ...

Medicine & Health / Genetics

created Jul 09, 2010 | popularity 5 / 5 (8) | comments 1 | with audio podcast report

Autopsy study links prostate cancer to single rogue cell

that's all it takes to begin a series of events that lead to metastatic cancer. Now, Johns Hopkins experts have tracked how the cancer process began in 33 men with prostate cancer who died of the disease. Culling information ...

Medicine & Health / Cancer

created Apr 17, 2009 | popularity 4.9 / 5 (8) | comments 0

We are not only eating 'materials', we are also eating 'information'

In a new study, Chen-Yu Zhang's group at Nanjing university present a rather striking finding that plant miRNAs could make into the host blood and tissues via the route of food-intake. Moreover, once inside the host, they ...

Biology / Cell & Microbiology

created Sep 19, 2011 | popularity 4.8 / 5 (8) | comments 4

Two-step technique makes graphene suitable for organic chemistry

The future brightened for organic chemistry when researchers at Rice University found a highly controllable way to attach organic molecules to pristine graphene, making the miracle material suitable for a ...

Nanotechnology / Nanomaterials

created Nov 29, 2011 | popularity 4.8 / 5 (8) | comments 4 | with audio podcast

Nucleotide

Nucleotides are molecules that, when joined together, make up the structural units of RNA and DNA. Additionally, nucleotides play central roles in metabolism. In that capacity, they serve as sources of chemical energy (adenosine triphosphate and guanosine triphosphate), participate in cellular signaling (cyclic guanosine monophosphate and cyclic adenosine monophosphate), and are incorporated into important cofactors of enzymatic reactions (coenzyme A, flavin adenine dinucleotide, flavin mononucleotide, and nicotinamide adenine dinucleotide phosphate).

For more information about Nucleotide, read the full article at Wikipedia.
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